Energy Saving Plastic Injection Molding Machine

1.Preparing before polishing
1. The polishing and polishing personnel must be trained and qualified by examinations before they can take up their posts.
2. Define the technological requirements of the workpiece, the material and initial state, the processing position, shape, size and polishing accuracy requirements of this process.
3. Before polishing, it is necessary to check whether the polishing surface has defects such as collapse, collapse angle, over-cutting, deformation and sand holes, and whether the remaining polishing allowance is sufficient.
4. Reasonable selection of tools, fixtures, main and auxiliary materials for this process according to process specifications.
5. Proper protection of workpiece according to process requirements.
6. Revalidate steps 1-5 and enter the operation procedure.

2. Fixture and Protection of Workpieces
1. For the higher or longer workpieces below 20kg, the clamp of bench clamp is required on the polishing table.
2. For larger and heavier workpieces, front and rear magnets and screw clamps should be used on the polishing table to tighten them.
3. When grinding and polishing workpieces with a working car, wedges or related measures should be adopted to ensure the stability and safety of the work.
4. Rubber sheets should be used to protect the small and vulnerable workpieces.
5. Workpieces with sharp and angular corners shall be protected by rubber tape and adhesive paper to prevent injury or damage to workers and workpieces.
6. For the workpiece that needs to keep edge and sealing position, it is possible to adopt a baffle (saw blade or iron sheet) or a baffle to fix and protect the chamfer and chamfer of the anti-edge.

3. Content and scope of self-inspection
1. Whether the sealing surface is caved in and rounded;
2. Whether to destroy the original die inclination or not;
3. Check the size of each polishing surface to see if it exceeds the reserved amount.
4. Whether the corner at the bottom of the cavity is concave into the side and bottom;
5. Is there an inversion phenomenon?
6. Whether the roughness has met the requirements of the drawings;
7. After passing the self-inspection, it shall be sent to the team leader (or inspector) for inspection.

Clamping Unit:

1. Optimized Platen Design with high rigidity and enlarged space between tie bars

2. Euromap-based Platen Layout with both T-slot & tap holes, locating design in moving platen to better suit various molds

3. New ejection system design with longer ejection stroke, bigger space and better rigidity

4. Hydraulic drivien gear-type mold height adjustion mechanism

5. Relocation of mechanical safety interlock for easier operation

6. linkage structure for front connecting rod increases connectingrod's strength greatly, as well as the whole clamping unit's rigidity & accuracy.

Injection Unit:

1. High Quality Linear Motion Guide ensure the smooth & accuracy of injection process

2. High Speed & Pressure injection structure can improve the injection speed

3. Twin nozzle cylinder ensures more even & stable structure

4. Specilized screw barrel design for various appliance

Hydraulic System:

1. The double proportional compound valve control system pressure & flow, highly sensitive & stable

2. Imported high quality Pump, low in noise, long in lifespan & stable in performance

3. World-famous servo hydraulic system optional, better performance in lower noise & energy saving

4. The precise feedback control of servo system to the pressure & flow, with higher sensitivity & more accurate repeatability precision

5. High performance hydraulic valve, less failure, fast switch, convenient maintenance

6. Low pressure mold protect system, which is more suitable for the precise mould

7. Greese & lubrication oil in dependent lubrication system can lubricate everywhere in the best situation

Electrical System:

1. Control by double CPU, the system HMI use X86 300MHz technical grade display. The system employees a RISC 140MHz microprofessor, with high speed, noise-immunity, fan-less and lower power consumption, independent control structure improve the stablity of control

2. 8.4" display screen with resolution 800*600, user friendly screen & optional choose of language

3. Equiped with USB(2.0) port & ethernet(100-base T) ports

4. 32 Points input & output, entendable and trouble spot can be replaced easily

5. Linder transducer's resolution is 1/65535, more precise in control

6. 120 technological parameters access can be stored & uploaded with an ordinary USB drives

7. Injection End and temperature tracking is curve display, dynamic recorder parameter is modified, dynamic warningis exhibited, all these make the operation more convenient.

NINGBO HAIJIANG MACHINERY MANUFACTURING CO.,LTD., situated in Ningbo Yinzhou Investment & Innovation Center, coversa land of more than 50,000M2.It was established in 1992 and now employs a staff of more than 500 people. with CE and ISO9001

Haijiang Company is a hihg-tech enterprise specialized in manufacturing injection molding machine that mainly covers dozens of speci?cations with injection shot of 45-2,0000g and mold clamping force of 400-15,000KN. Based on the marrow of the trade gained and through years' accumulation, the company has made constant innovation to ensure the machine quality.Parts built into the machines of defferent mold locking forces are all processed under specialized management. HJF series injection molding machines are developed by Haijiang Company on the basis of a collection of the advantages assimilated from all world famous brand machines with optimized design realized by CAD/CAM/CAPP where technical problems such as noise of the entire machine and low energy dissipation are removed and thus the design quality of products is secured. The company adopts advanced equipment and technology and applies scientific management. Besides, it has introduced high-precision full automatic CNC machines fitted with imported electric and hydraulic parts, which have tremendously improved the accuracy and steadiness of the whole machine. Its present products such as HJK and KJF series and widely applied in the electronic, automobile and civil industries.
In order to participate in competition in the world market,the company has clustered a group of high quality technical and managerial personnel with innovative spirit by means of optimized combination fo personnel. The company faces the society and users by acting on the principle of pursuit for ?rst class and sincere service. We will appreciate friends from all circles who have given their concern and support to Haijiang machines with first class products and first class after service.